Lighting fixture



June 1930' R. WILLIAMSON 1,767,418

' LIGH'IVING FIXTURE v Filed Jan; 26, 1928 2 hee s-Sheet} June 24, 1930. R. WILLIAMSON LIGHTING FIXTURE Filed Jan. 26, 1928 2 Sheets-Sheet 2 Patented June 24, 1 930 ("FUN-mt STATES-PATENT W nioH'A'Ri) wrntiaiirsolv, "or nineties, ILLmo'Is, ias'sreivoiapv Miisivr ten ments,

To BtA'R'n'siLEn CIIANDEL'IER MANUFACTURING 00.0w eHIcAGoQIt rivors A coa- .IORATibiiT OF DELAWARE LiiI'r iNG FixT n-E Appnafioa'med ame 26, 1928'. Serial "Nb. 249,538.

This invention relates to'lightingfixtures and its obj'ect'is to provide a "neatjandattrac tive fixture or simple construction for distributing the light from a lamp to the best advantage and produce a desirably soft distributed and effective illumination.

The invention also' has for" its object to combine the fixture frame the shade and the lamp in a-n'ovel manner to throwfa flood'lrg-ht efi'ect upward on and above the fixture and a soft distributed light around the fixture and a concentrated light downward upon a dining table acardtable orother furniture beneath the fixture. f V.

And a further object of the invention is to confine thefnumber of parts to a minimum, and to provide means whereby .the'shade is held in place onthe fixture armby structural engagement therewithand is prevented from displacement from the fixture by anovelarranfgement of the lamp with respect'to the shade and the fixture arm.

In the accompanying drawings I have 11- lustrated a selected embodiment of the invention wherein 1 Fig. l is a sectional elevat1on of a portion of a fixture and embodying my invention.

Fig. 2 is a top plan view of the structure shown in Fig. '1. Fig. 8 is a perspective view of the shade.

Figs. 44) are sectional views showing other forms of the invention. l The fixture may comprise one or anynumber of arms which may be made in any suitable form and construction and of any desired material. I have chosen for illustration an arm of a fixture comprising a plurality of arms of the kind which is usually suspended from the ceiling of a dining room and above a table, or'from the ceiling of a living room,

and is generally made of cast or suitably stamped sheet metal; but I do not restrict the invention to this or any other particular type of fixture because it will readily be ap preciated asthe invention is better understood that it is capable of embodiment in other fixtures with equally satisfactory results.

Therefore I consider it sufficient to show and describe the arm 4 of the fixturein a right; bracket general wayonly as provided with an upx 5 for supporting; the lamp socket 6flito which it is. securely fastened.

This socket projects substantially horizontally above the arm and s'ufiiciently close to the arm sothat the lamp 7 will project partly in'to'or close to an opening 8 in the arm V" The shade shown in'Flg. shes a curved front 9,jrearward1 extending sides 10, an

. open back? 11, an open top 12; a closed bottfoni13 h'aving a partly convex portion 14 which fits with a reasonable dgreeof snugness in the opening 8 in the 'armof the fixture;

. Figs. 1,2. In this embodimeiit of the invention the shade will throw afioo'd like'etfect up, upon and above the fixture and soften and distribute thelight around about the fixture and coiice'n'trate a'soft light down through.

the opening in the fixture. The shape of the shadeis such that the lamp cannot ;conveni-'- ently beengaged with the-socket after the shade ha'sjbe'eh arranged in place on the fixture arm and hence the lamp must be screwed into the socket first an'dthe shade arranged in position thereafter. Also, the shape of the shade is such and the arrangement of the lamp with respect to the armarid the openiijig therein issuch that the shade cannot he slid into place witha 'horiylontal or even a substantially horizontal movement, but in'ust be tilted at a considerabl angle and 'thenslipped in between the lamp andthe arm with the convex portion entering the opening. Vi hcn the shade is properly arranged on the arm, its

bottom will rest flatly thereon and thecon- "ex portion will seatin the opening 8. The

lamp is' arranged to project partly into the concavity at the back of the convex portion ofthe'. bottom of the shade so that by reason of theengagementof the convex portion with the opeiii-ng-ln the arm and the arrangement of the lamp with respect v to" the conve'xporhelium shade will be prevented troin" moving' laterally or in substantially lateral movement; on the It isonlypossible reappl or remove the shade byftilting it at a considerable angle over the lamp {and'it is not likely'that under any ordinary] conditions the shade will ever become tiltedto such un angle unless it is so tilteddelibercommonly employed for this purpose, and.

many other objections known in the trade.

'lhe absence of fastening devices facilitates cleaning the fixture and replacing the lamp by making it easy to remove the shade. This is important with wall fixtures, but it s more important with ceiling fixtures which are not.

so accessible.

In Fig. 4 the shade is like that shown in Fig. 3 except that it has a flat bottom 15; in Fig. 5 the shade also has a flat bottom 16 and the sides 17 are of the same height as the front 18; in Fig. 6 the shade has a flat bottom 19 and a fiat top 20; in Fig. 7 the shade is like that shown in Fig. 5 except that the bottom has a convex portion 21; in Fig. 8 the shade is like that shown in Fig. 6 except that the bottom has a convexportion' 22; and in Fig. 9 the shade has an open bottom and a fiat'top 23. The shades shown in Figs. 4-8 are seated on the arm as heretofore described but the shade of Fig. 9 may be seated by passing it down over the lamp in a substantially vertical direction. The shades may be spaced from the rim 24 of the arm as shownin Figs. 1, 2, 7 and 8 or they may be seated close to or in engagement with the arm as shown in Figs.

fl, 5, 6 and 9.

In all of these embodiments of the invention there is a co-operation between an arm having an opening, alamp arranged above the opening, and a shade seated on the arm about the lamp which results in an efiicient distribution of light from the lamp to produce a superior illuminating efi'ect.

It is desirable to mount the socket 6 in the bracket 5 as close as possible to the arm 4 so that it will be hidden from View from below the fixture by the arm and the flange 24, thereon, as shown in Figs. 1 and 9, and it may be necessary in some embodiments of the invention to tilt the socket slightly, as shown in broken lines in Fig. 7.

I contemplate making the shade of translucent glass with or without decorations, but it may be made of other kinds of glass, or combinations thereof or it may be made of parchment, pigskin or othermaterial suitable for the purpose. I do not restrict my invention to the particularforms and construction herea supporting arm provided with an opening therein, a lamp supported in a substantially horizontal position on said arm and projecting above said opening, and a shade seated on the arm and having a Convex portion arranged in said opening, the convex portion fitting in said opening to prevent lateral movement of the shade on the arm and the lamp projecting partly in the concave back of the convex portion of the shade to prevent aecidental'displacement of the shade.

2. In a lighting'fixture, the combination of a substantially horizontal supporting arm provided. with an opening therein, an upstanding bracket on said arm spaced from said opening, a lamp socket supported in a substantially 3 horizontal position on said bracket, a lamp engaged with said socket and projecting above said opening, and a shade closed at the front andsides, open at the top and back and having a closed bottom with a convex portion, said convex portion projecting downwardly through said opening in the arm and saidlamp projecting into the concave back of said convex portion.

-3. In a lighting fixture, the combination of a bracket arm having a horizontally disposed seat portion and an opening in the bottom wall of said seat portion, a shade surrounding said opening and removably supported entirely upon the seat and having a side opening,a socket mounted on said arm outside of said shade and a lamp in said socket extending substantially horizontally through theside opening into the shade and positioned directly, above the seat opening.

RICHARD VILLIAMSON.

in shown and described, nor to the particular arrangement of parts for all purposes, but I reserve the right to make any changes therein that may be desirable to satisfy various conditions and within the scope of the following claims. I

1. In a lighting fixture, the combinat on of 

